Bicycle frame



FIG. 1 is a right side elevation view of a fully assembled bicycle frame embodying my new design;

FIG. 2 is a left side elevation view thereof;

FIG. 3 is a top plan view thereof;

FIG. 4 is an exploded perspective view thereof without the rear fork component;

FIG. 5 is a front and right side perspective view thereof;

FIG. 6 is a rear and right side perspective view thereof;

FIG. 7 is a front and right side perspective view of the main horizontal tube component thereof;

FIG. 8 is a rear and left side perspective view of the main horizontal tube component thereof;

FIG. 9 is a rear and right side perspective view of the saddle column portion thereof;

FIG. 10 is a rear and right side perspective view of the rear fork component thereof;

FIG. 11 is a rear and left side perspective view of the rear fork component thereof; and,

FIG. 12 is a rear and right side perspective view of the structural cage component thereof. 

CLAIM The ornamental design for a bicycle frame, as shown and described. 